Physics 106, Section 1


 Prosper Shields
 4 years ago
 Views:
Transcription
1 Physics 106, Section 1 Magleby Exam 2, Summer 2012 Exam Cid You are allowed a pencil and a testing center calculator. No scratch paper is allowed. Testing center calculators only.
2 1. A circular coil lays flat on a horizontal table in a region where the magnetic field is straight down. The magnetic field is suddenly removed. When viewed from above, what is the direction of the current in the coil as the field is removed? A A. clockwise B. clockwise initially, then counterclockwise before going to zero C. counterclockwise D. There is no induced current. 2. If the number of turns on the transformer input is greater than the number on the output, then the transformer D A. outputs greater voltage than at the input. B. outputs less current than at the input. C. outputs greater voltage and current than at the input. D. outputs less voltage than at the input. E. increases the voltage but does not affect the current. 3. A series LR circuit includes a 9.00 V battery, a 30.0 mh inductor, and a resistance of What is the time constant of this circuit? D A. 115 s B. 170 s C ms D ms E ms 4. A series LR circuit includes a 9.0 V battery, a resistance of 0.50, and an inductance of 0.80 H. What is the induced emf 2.0 s after the switch has been closed? C A. 0.0 B. 9.0 V C. 6.4 V D. 2.6 V E. 19 mv
3 5. A loop of wire is moved through a region of uniform magnetic field. As it is moved, its orientation with respect to the magnetic field direction does not change. The induced current at this time in the loop: D A. depends on the shape of the loop B. depends on the magnitude of the field C. depends on the speed with which it is moved D. is zero E. depends on the acceleration of the loop 6. A 20turn coil of area 10 cm 2 is placed in a magnetic field so that the normal to its area is in the direction of the field. If the field originally has a value of 0.25 T what is the emf induced when the field increases to 0.35 T in 2.0 s? C A. 7.0 mv B. 2.0 mv C. 1.0 mv D. 3.5 mv E. 4.0 mv 7. A 20turn coil of area 10 cm 2 is placed in a magnetic field so that the normal to its area is in the direction of the field. If the field has a value of 0.25 T, what is the total flux through the coil? B A. 0.0 B. 5.0 x 103 T m 2 C. 25 x 105 T m 2 D. 50 T m 2 E. 25 T m 2 8. A metal rod of length 2.0 m is moved at 6.0 m/s in a direction perpendicular to its length. A 5.0 T magnetic field is perpendicular to both the rod and its velocity. What is the magnitude of the electric field in the rod? C A. 12 V/m B. 60 V/m C. 30 V/m D. 15 V/m E. 0.0
4 9. A charged particle enters a region of magnetic field at a speed of 2.8 x 10 4 m/s, at an angle of 37 degrees relative to the magnetic field direction. What will be the magnitude of the component of the particle s velocity that is parallel to the magnetic field while it is in this region? B A. Insufficient information is given. B. 2.2 x 10 4 m/s C. 2.1 x 10 4 m/s D. 1.7 x 10 4 m/s E. 2.8 x 10 4 m/s 10. One wire, lying on the xaxis, carries a current of 8.0 A in the positive xdirection. Another wire, lying on the yaxis, carries a current of 12 A in the positive ydirection. What is the magnitude of the magnetic field at (x, y) = (8.0 cm, 12.0 cm)? C A. 1.3 x 105 T B. 3.0 x 105 T C. 1.7 x 105 T D. 4.3 x 105 T E. 4.0 x T 11. A long straight wire is carrying a current of 2.4 A. If the magnetic field in that region is 0.52 mt and makes a 60 angle with the wire, what is the magnitude of the force on 3.0 m of the wire? D A. 3.2 N B. 6.5 N C. 1.6 x 103 N D. 3.2 x 103 N E. 6.5 x 103 N 12. A 3.0 cm section of a horizontal wire carrying a 6.7 A current from east to west is placed in a north to south 0.42 T magnetic field in the lab. In what direction is the magnetic force on the 3.0 cm section? C A. North B. South C. D.
5 13. An electron is moving at 3.0 x 10 6 m/s at an angle of 40 to a 0.80 T magnetic field. What is the magnitude of the force on the electron? C A. 4.8 x N B. 3.8 x N C. 2.5 x N D. 2.9 x N E. 1.2 x N 14. An electron is moving at 3.6 x 10 6 m/s perpendicular to a uniform magnetic field. If the radius of the motion is 18 mm, what is the magnitude of the magnetic field? B A. 70 mt B mt C. 9.3 mt D. 1.6 T E. 8.9 nt 15. A negative ion is moving east near the equator where the Earth's magnetic field is horizontal to the north. The direction of the magnetic force on the ion is D A. north. B. south. C. away from the earth. D. toward the center of the earth. E. not meaningful since the force is zero. 16. The SI unit of magnetic field is the tesla, which is equivalent to a C A. N/C. B. A/m. C. N/(A m). D. magnon. E. None of these choices are correct.
6 17. The magnetic field in a cyclotron is 0.50 T. Find the magnitude of the magnetic force on a proton with velocity of 1.0 x 10 7 m/s in a plane perpendicular to the field. D A. 6.0 x N B. 6.0 x N C. 8.0 x N D. 8.0 x N 18. If a charged particle is moving through a magnetic field with its velocity at an angle of 45 degrees with respect to the field, what happens to the magnetic force on it if both the speed and magnetic field are doubled? C A. It stays the same. B. It doubles. C. It quadruples. D. It halves. E. It increases by a factor of A straight wire is carrying a current upward. Observed from above (i.e., looking downward towards the wire), the magnetic field lines are D A. radially outward. B. radially inward. C. forming clockwise circles. D. forming counterclockwise circles. E. directed toward the observer. 20. If the magnetic field from a currentcarrying long straight wire has a magnitude B 0 at a distance d, what is the magnitude of the field at a distance 2d? D A. also B 0 B B 0 C B 0 D. B 0 /2 E. B 0 /4
7 21. Two parallel wires are each carrying 10 A and are separated by 4.0 m. If the currents are in opposite directions, what is the magnitude of the magnetic field halfway between them? C A. 0.0 B. 1.0 µt C. 2.0 µt D. 4.0 µt E. 1.4 µt 22. What current is necessary to generate a field of 0.20 T inside a solenoid of 300 turns per cm? B A. 530 A B. 5.3 A C. 33 A D A E. 3.1 A 23. A proton and electron, each travelling at the same speed, enter a region of uniform magnetic field. They experience B A. forces in the same direction and having ratio F p /F e = m e /m p B. forces equal in magnitude, but opposite in direction C. forces opposite in direction and having ratio F p /F e = m e /m p D. the same force 24. A charged particle having electric charge Q = 4.0 e enters a region of magnetic field 1.2 T at an angle of 37 degrees relative to the magnetic field direction. If the speed of the particle upon entering the region is 2.8 x 10 4 m/s, what is the magnitude of the force on it? B A. 1.8 x N B. 1.3 x N C. 3.3 x N D. 1.1 x N E. 1.4 x N
8 25. A generator is designed to produce a maximum emf of 170 V while rotating at 3200 rpm. The coils of the generator are circular with diameter 7.5 cm. Assuming the magnetic field in the generator is T, what is the number of loops needed in the generator coil? A. 160 B C D E. 25
Physics 2B Winter 2012 Final Exam Practice
Physics 2B Winter 2012 Final Exam Practice 1) When the distance between two charges is increased, the force between the charges A) increases directly with the square of the distance. B) increases directly
More informationPRACTICE EXAM 2 for Midterm 2
PRACTICE EXAM 2 for Midterm 2 Multiple Choice Questions 1) In the circuit shown in the figure, all the lightbulbs are identical. Which of the following is the correct ranking of the brightness of the bulbs?
More informationPhysics 6B Summer 2007 Final
Physics 6B Summer 2007 Final Question 1 An electron passes through two rectangular regions that contain uniform magnetic fields, B 1 and B 2. The field B 1 is stronger than the field B 2. Each field fills
More informationPRACTICE EXAM 1 for Midterm 2
PRACTICE EXAM 1 for Midterm 2 Multiple Choice Questions 1) The figure shows three identical lightbulbs connected to a battery having a constant voltage across its terminals. What happens to the brightness
More informationPHY 131 Review Session Fall 2015 PART 1:
PHY 131 Review Session Fall 2015 PART 1: 1. Consider the electric field from a point charge. As you move farther away from the point charge, the electric field decreases at a rate of 1/r 2 with r being
More informationP202 Practice Exam 2 Spring 2004 Instructor: Prof. Sinova
P202 Practice Exam 2 Spring 2004 Instructor: Prof. Sinova Name: Date: (5)1. How many electrons flow through a battery that delivers a current of 3.0 A for 12 s? A) 4 B) 36 C) 4.8 10 15 D) 6.4 10 18 E)
More informationCHAPTER 4: MAGNETIC FIELD
CHAPTER 4: MAGNETIC FIELD PSPM II 2005/2006 NO. 4 4. FIGURE 3 A copper rod of mass 0.08 kg and length 0.20 m is attached to two thin current carrying wires, as shown in FIGURE 3. The rod is perpendicular
More information(a) zero. B 2 l 2. (c) (b)
1. Two identical coaxial circular loops carry equal currents circulating in the same direction: (a) The current in each coil decrease as the coils approach each other. (b) The current in each coil increase
More informationPHYS102 Previous Exam Problems. Induction
PHYS102 Previous Exam Problems CHAPTER 30 Induction Magnetic flux Induced emf (Faraday s law) Lenz law Motional emf 1. A circuit is pulled to the right at constant speed in a uniform magnetic field with
More informationa. Clockwise. b. Counterclockwise. c. Out of the board. d. Into the board. e. There will be no current induced in the wire
Physics 1B Winter 2012: Final Exam For Practice Version A 1 Closed book. No work needs to be shown for multiplechoice questions. The first 10 questions are the makeup Quiz. The remaining questions are
More informationPHYS 241 EXAM #2 November 9, 2006
1. ( 5 points) A resistance R and a 3.9 H inductance are in series across a 60 Hz AC voltage. The voltage across the resistor is 23 V and the voltage across the inductor is 35 V. Assume that all voltages
More informationSCS 139 Applied Physic II Semester 2/2011
SCS 139 Applied Physic II Semester 2/2011 Practice Questions for Magnetic Forces and Fields (I) 1. (a) What is the minimum magnetic field needed to exert a 5.4 1015 N force on an electron moving at 2.1
More informationMULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
Exam Name MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) A jeweler needs to electroplate gold (atomic mass 196.97 u) onto a bracelet. He knows
More informationPHYS 2326 University Physics II Class number
PHYS 2326 University Physics II Class number HOMEWORK SET #1 CHAPTERS: 27,28,29 (DUE JULY 22, 2013) Ch. 27.======================================================= 1. A rod of 2.0m length and a square
More informationAP Physics 2  Ch 20 Practice
Class: Date: AP Physics 2  Ch 20 Practice Multiple Choice Identify the choice that best completes the statement or answers the question. 1. A coil is wrapped with 300 turns of wire on the perimeter of
More informationElectromagnetic Induction Practice Problems Homework PSI AP Physics B
Electromagnetic Induction Practice Problems Homework PSI AP Physics B Name Multiple Choice Questions 1. A square loop of wire is placed in a uniform magnetic field perpendicular to the magnetic lines.
More informationMagnetism Practice Problems PSI AP Physics B
Magnetism Practice Problems PSI AP Physics B Name 1. A straight wire carries a current down. What is the direction of the magnetic field at the point to the East from the wire? (A) West (B) East (C) North
More informationChapter 12. Magnetism and Electromagnetism
Chapter 12 Magnetism and Electromagnetism 167 168 AP Physics Multiple Choice Practice Magnetism and Electromagnetism SECTION A Magnetostatics 1. Four infinitely long wires are arranged as shown in the
More informationCh 17 Problem Set 31. A toaster is rated at 600 W when connected to a 120V source. What current does the toaster carry, and what is its resistance?
Ch 17 Problem Set 31. A toaster is rated at 600 W when connected to a 120V source. What current does the toaster carry, and what is its resistance? 33. How many 100W lightbulbs can you use in a 120V
More informationREVIEW SESSION. Midterm 2
REVIEW SESSION Midterm 2 Summary of Chapter 20 Magnets have north and south poles Like poles repel, unlike attract Unit of magnetic field: tesla Electric currents produce magnetic fields A magnetic field
More informationPhysics 42 Exam 3 Spring 2016 Name: M T W
Physics 42 Exam 3 Spring 2016 Name: M T W Conceptual Questions & Shorty (2 points each) 1. Which magnetic field causes the observed force? 2. If released from rest, the current loop will move a. upward
More informationHW7: Ch. 26 P 34, 36 Ch.27 Q 2, 4, 8, 18 P 2, 8, 17, 19, 37
Fall 12 PHY 122 Homework Solutions #7 HW7: Ch. 26 P 34, 36 Ch.27 Q 2, 4, 8, 18 P 2, 8, 17, 19, 37 Chapter 26 Problem 34 Determine the magnitudes and directions of the currents in each resistor shown in
More informationA) I B) II C) III D) IV E) V
1. A square loop of wire moves with a constant speed v from a fieldfree region into a region of uniform B field, as shown. Which of the five graphs correctly shows the induced current i in the loop as
More informationPhysics 2401 Summer 2, 2008 Exam III
Physics 2401 Summer 2, 2008 Exam e = 1.60x1019 C, m(electron) = 9.11x1031 kg, ε 0 = 8.845x1012 C 2 /Nm 2, k e = 9.0x10 9 Nm 2 /C 2, m(proton) = 1.67x1027 kg. n = nano = 109, µ = micro = 106, m =
More informationPhysics 2020 Exam 2 Constants and Formulae
Physics 2020 Exam 2 Constants and Formulae Useful Constants k e = 8.99 10 9 N m 2 /C 2 c = 3.00 10 8 m/s ɛ = 8.85 10 12 C 2 /(N m 2 ) µ = 4π 10 7 T m/a e = 1.602 10 19 C h = 6.626 10 34 J s m p = 1.67
More informationLouisiana State University Physics 2102, Exam 3, November 11, 2010.
Name: Instructor: Louisiana State University Physics 2102, Exam 3, November 11, 2010. Please be sure to write your name and class instructor above. The test consists of 3 questions (multiple choice), and
More informationSolution for Fq. A. up B. down C. east D. west E. south
Solution for Fq A proton traveling due north enters a region that contains both a magnetic field and an electric field. The electric field lines point due west. It is observed that the proton continues
More information21 MAGNETIC FORCES AND MAGNETIC FIELDS
CHAPTER 1 MAGNETIC FORCES AND MAGNETIC FIELDS ANSWERS TO FOCUS ON CONCEPTS QUESTIONS 1 (d) RightHand Rule No 1 gives the direction of the magnetic force as x for both drawings A and B In drawing C, the
More informationMagnets and Electromagnetism
Review 9 Magnets and Electromagnetism 1. A 1.2 cm wire carrying a current of 0.8 A is perpendicular to a 2.4 T magnetic field. What is the magnitude of the force on the wire? 2. A 24 cm length of wire
More informationGen. Phys. II Exam 2  Chs. 21,22,23  Circuits, Magnetism, EM Induction Mar. 5, 2018
Gen. Phys. II Exam 2  Chs. 21,22,23  Circuits, Magnetism, EM Induction Mar. 5, 2018 Rec. Time Name For full credit, make your work clear. Show formulas used, essential steps, and results with correct
More informationYour name: Your TA: Your section Day/Time: PHY 101 Practice inclass exam III Wednesday, November 28, 3:153:35PM
1 Your name: Your TA: Your section Day/Time: PHY 101 Practice inclass exam III Wednesday, November 28, 3:153:35PM Please be sure to show your work where it is requested. If no work is shown where it
More information1 Fig. 3.1 shows the variation of the magnetic flux linkage with time t for a small generator. magnetic. flux linkage / Wbturns 1.
1 Fig. 3.1 shows the variation of the magnetic flux linkage with time t for a small generator. 2 magnetic 1 flux linkage / 0 10 2 Wbturns 1 2 5 10 15 t / 10 3 s Fig. 3.1 The generator has a flat coil
More informationPHYS 272 Fall 2010 Thursday, December 16, 2010
PHYS 272 Fall 2010 Thursday, December 16, 2010 Final Exam The final exam has only this machinegraded part of 22 multiple choice questions. Each multiple choice problem is worth 10 points. Using a pencil,
More informationBROCK UNIVERSITY SOLUTIONS
BROCK UNIVERSITY Midterm Test 3: July 2014 Number of pages: 7 (+ formula sheet) Course: PHYS 1P22/1P92 Number of students: 38 Examination date: 10 July 2014 Number of hours: 1 Time of Examination: 18:00
More informationPHY 101 Practice Exam III Monday, November 27, 2:153:35PM
1 PHY 101 Practice Exam III Monday, November 27, 2:153:35PM Please be sure to show your work where it is requested. If no work is shown where it is requested, you will not receive any points. Partial
More informationFig. 2.1 I =... A [2] Suggest why it would be impossible for overhead cables carrying an alternating current to float in the Earth s magnetic field.
1 (a) Fig. 2.1 shows a horizontal currentcarrying wire placed in a uniform magnetic field. I region of uniform magnetic field wire Fig. 2.1 The magnetic field of flux density 0.070 T is at right angles
More informationPHYSICS 3204 PUBLIC EXAM QUESTIONS (Magnetism &Electromagnetism)
PHYSICS 3204 PUBLIC EXAM QUESTIONS (Magnetism &Electromagnetism) NAME: August 2009
More informationChapter 5: Electromagnetic Induction
Chapter 5: Electromagnetic Induction 5.1 Magnetic Flux 5.1.1 Define and use magnetic flux Magnetic flux is defined as the scalar product between the magnetic flux density, B with the vector of the area,
More informationTIME OF COMPLETION NAME SOLUTION DEPARTMENT OF NATURAL SCIENCES. PHYS 1112, Exam 2 Section 1 Version 1 April 2, 2013 Total Weight: 100 points
TIME OF COMPLETION NAME SOLUTION DEPARTMENT OF NATURAL SCIENCES PHYS 1112, Exam 2 Section 1 Version 1 April 2, 2013 Total Weight: 100 points 1. Check your examination for completeness prior to starting.
More informationExam 3 November 19, 2012 Instructor: Timothy Martin
PHY 232 Exam 3 October 15, 2012 Exam 3 November 19, 2012 Instructor: Timothy Martin Student Information Name and section: UK Student ID: Seat #: Instructions Answer the questions in the space provided.
More informationPhysics 2220 Fall 2010 George Williams THIRD MIDTERM  REVIEW PROBLEMS
Physics 2220 Fall 2010 George Williams THIRD MIDTERM  REVIEW PROBLEMS Solution sets are available on the course web site. A data sheet is provided. Problems marked by "*" do not have solutions. 1. An
More information4. An electron moving in the positive x direction experiences a magnetic force in the positive z direction. If B x
Magnetic Fields 3. A particle (q = 4.0 µc, m = 5.0 mg) moves in a uniform magnetic field with a velocity having a magnitude of 2.0 km/s and a direction that is 50 away from that of the magnetic field.
More information1 2 U CV. K dq I dt J nqv d J V IR P VI
o 5 o T C T F 3 9 T K T o C 73.5 L L T V VT Q mct nct Q F V ml F V dq A H k TH TC L pv nrt 3 Ktr nrt 3 CV R ideal monatomic gas 5 CV R ideal diatomic gas w/o vibration V W pdv V U Q W W Q e Q Q e Carnot
More informationMagnetic Fields Due to Currents
PHYS102 Previous Exam Problems CHAPTER 29 Magnetic Fields Due to Currents Calculating the magnetic field Forces between currents Ampere s law Solenoids 1. Two long straight wires penetrate the plane of
More informationUnit 8: Electromagnetism
Multiple Choice Portion Unit 8: Electromagnetism 1. Four compasses are placed around a conductor carrying a current into the page, as shown below. Which compass correctly shows the direction of the magnetic
More informationVersion 001 HW 22 EM Induction C&J sizemore (21301jtsizemore) 1
Version 001 HW 22 EM Induction C&J sizemore (21301jtsizemore) 1 This printout should have 35 questions. Multiplechoice questions may continue on the next column or page find all choices before answering.
More informationChapter 23 Magnetic Flux and Faraday s Law of Induction
Chapter 23 Magnetic Flux and Faraday s Law of Induction 1 Overview of Chapter 23 Induced Electromotive Force Magnetic Flux Faraday s Law of Induction Lenz s Law Mechanical Work and Electrical Energy Generators
More informationELECTRO MAGNETIC INDUCTION
ELECTRO MAGNETIC INDUCTION 1) A Circular coil is placed near a current carrying conductor. The induced current is anti clock wise when the coil is, 1. Stationary 2. Moved away from the conductor 3. Moved
More informationMagnets. Domain = small magnetized region of a magnetic material. all the atoms are grouped together and aligned
Magnetic Fields Magnets Domain = small magnetized region of a magnetic material all the atoms are grouped together and aligned Magnets Ferromagnetic materials domains can be forced to line up by applying
More information11 Magnetism. q ν B.(1) = q ( ) (2)
11 Magnetism Magnets exert forces on each other just like charges. You can draw magnetic field lines just like you drew electric field lines. Magnetic north and south pole s behavior is not unlike electric
More informationPhysics 126 Fall 2004 Practice Exam 1. Answer will be posted about Oct. 5.
Physics 126 Fall 2004 Practice Exam 1. Answer will be posted about Oct. 5. 1. Which one of the following statements best explains why tiny bits of paper are attracted to a charged rubber rod? A) Paper
More informationPS I AP Physics 2 Electromagnetic Induction Multiple Choice Questions
PS I AP Physics 2 Electromagnetic Induction Multiple Choice Questions 1. A beam of electrons travels between two parallel coils of wire, as shown in the figures above. When the coils do not carry a current,
More information1. Write the relation for the force acting on a charge carrier q moving with velocity through a magnetic field in vector notation. Using this relation, deduce the conditions under which this force will
More informationNAME: PHYSICS 6B SPRING 2011 FINAL EXAM ( VERSION A )
NAME: PHYSCS 6B SPRNG 2011 FNAL EXAM ( VERSON A ) Choose the best answer for each of the following multiplechoice questions. There is only one answer for each. Questions 12 are based on the following
More informationweek 8 The Magnetic Field
week 8 The Magnetic Field General Principles General Principles Applications Start with magnetic forces on moving charges and currents A positive charge enters a uniform magnetic field as shown. What is
More informationTopic 6.3 Magnetic Force and Field. 2 hours
Topic 6.3 Magnetic Force and Field 2 hours 1 Magnetic Fields A magnetic field is said to exist at a point if a compass needle placed there experiences a force. The appearance of a magnetic field can be
More informationExam 3 Solutions. Answer: 1830 Solution: Because of equal and opposite electrical forces, we have conservation of momentum, m e
Exam 3 Solutions Prof. Paul Avery Prof. Zongan iu Apr. 27, 2013 1. An electron and a proton, located far apart and initially at rest, accelerate toward each other in a location undisturbed by any other
More informationUniversity of the Philippines College of Science PHYSICS 72. Summer Second Long Problem Set
University of the Philippines College of Science PHYSICS 72 Summer 20122013 Second Long Problem Set INSTRUCTIONS: Choose the best answer and shade the corresponding circle on your answer sheet. To change
More informationAP Physics Electromagnetic Wrap Up
AP Physics Electromagnetic Wrap Up Here are the glorious equations for this wonderful section. This is the equation for the magnetic force acting on a moving charged particle in a magnetic field. The angle
More informationMAGNETIC FIELDS CHAPTER 21
MAGNETIC FIELDS CHAPTER 21 1. A magnetic field may exist at a point as a result of moving charged particle 2. When a tiny bar magnet is suspended horizontally from its center, it lines up along the north
More informationTwo charges are spaced by 40 cm as shown in the diagram. The left charge is Q1 = 3 C ( C). The right charge is Q2 = 5 C ( C).
Two charges are spaced by 40 cm as shown in the diagram. The left charge is Q = 3 (306 ). The right charge is Q = 5 (506 ). 40 cm Q Q ) If field lines were drawn in the picture, which charge would
More informationPHYS 1444 Section 02 Review #2
PHYS 1444 Section 02 Review #2 November 9, 2011 Ian Howley 1 1444 Test 2 Eq. Sheet Terminal voltage Resistors in series Resistors in parallel Magnetic field from long straight wire Ampére s Law Force on
More informationAP Physics 2 Electromagnetic Induction Multiple Choice
Slide 1 / 50 AP Physics 2 Electromagnetic Induction Multiple Choice www.njctl.org Slide 2 / 50 1 A beam of electrons travels between two parallel coils of wire, as shown in the figures above. When the
More informationElectromagnetism II. (a) enav Na enav Cl (b) enav Na + enav Cl (c) enav Na (d) enav Cl (e) zero
Electromagnetism II 1. Salt water contains n sodium ions (Na + ) per cubic meter and n chloride ions (Cl ) per cubic meter. A battery is connected to metal rods that dip into a narrow pipe full of salt
More informationExam 2 Solutions. Note that there are several variations of some problems, indicated by choices in parentheses.
Exam 2 Solutions Note that there are several variations of some problems, indicated by choices in parentheses. Problem 1 Part of a long, straight insulated wire carrying current i is bent into a circular
More informationPhysics 102 Exam 2 Spring Last Name: First Name NetworkID
Last Name: First Name NetworkID Discussion Section: Discussion TA Name: Turn off your cell phone and put it out of sight. Keep your calculator on your own desk. Calculators cannot be shared. This is a
More information3/31/2014. Resistors in series. Resistors in parallel. Ohm s Law. Review for Test 2. Electric Power (cont d) V IR. R constant I
Ohm s Law eview for Test Ohm s law states that the current flowing through a piece of material is proportional to the voltage applied across the material. The resistance () is defined as the ratio of to.
More informationSolutions to PHY2049 Exam 2 (Nov. 3, 2017)
Solutions to PHY2049 Exam 2 (Nov. 3, 207) Problem : In figure a, both batteries have emf E =.2 V and the external resistance R is a variable resistor. Figure b gives the electric potentials V between the
More informationExam 2 Solutions. PHY2054 Spring Prof. Paul Avery Prof. Pradeep Kumar Mar. 18, 2014
Exam 2 Solutions Prof. Paul Avery Prof. Pradeep Kumar Mar. 18, 2014 1. A series circuit consists of an open switch, a 6.0 Ω resistor, an uncharged 4.0 µf capacitor and a battery with emf 15.0 V and internal
More informationMagnetism Chapter Questions
Magnetism Chapter Questions 1. Both Electric and Magnetic Forces will cause objects to repel and attract each other. What is a difference in the origin of these forces? 2. A Magnet has a north and a south
More informationPHYS 1102 EXAM  II. SECTION: (Circle one) 001 (TH 9:30 AM to 10:45AM) 002 (TH 3:30 PM to 4:45 PM) You have 1 hr 45 minutes to complete the test
PHYS 1102 EXAM  II SECTION: (Circle one) 001 (TH 9:30 AM to 10:45AM) 002 (TH 3:30 PM to 4:45 PM) Your Name: Student ID: You have 1 hr 45 minutes to complete the test PLEASE DO NOT START TILL YOU ARE INSTRUCTED
More informationCalculus Relationships in AP Physics C: Electricity and Magnetism
C: Electricity This chapter focuses on some of the quantitative skills that are important in your C: Mechanics course. These are not all of the skills that you will learn, practice, and apply during the
More informationPhysics 42 Exam 3 Fall 2013 PRINT Name:
Physics 42 Exam 3 Fall 2013 PRINT Name: 1 2 3 4 Conceptual Questions : Circle the BEST answer. (1 point each) 1. A small plastic ball has an excess negative charge on it. If a magnet is placed close to
More informationChapter In Fig , the magnetic flux through the loop increases according to the relation Φ B. =12.0t
Chapter 30 30.1 In Fig. 3037, the magnetic lux through the loop increases according to the relation = 6.0t 2 + 7.0t where the lux is in milliwebers and t is in seconds. (a) What is the magnitude o the
More informationPHYSICS Fall Lecture 15. Electromagnetic Induction and Faraday s Law
PHYSICS 1444001 Fall 2012 Lecture 15 Electromagnetic Induction and Faraday s Law A current can be produced by a changing magnetic field First shown in an experiment by Michael Faraday Induced emf A primary
More information2. Draw the Magnetic Field lines created by the below two bar magnets. Homework 3. Draw the Magnetic Field lines created by the below bar magnets.
Chapter Problems Magnetic Fields 1. Draw the Magnetic Field lines created by the below bar magnet. S N 2. Draw the Magnetic Field lines created by the below two bar magnets S N N S 3. Draw the Magnetic
More informationExam II. Solutions. Part A. Multiple choice questions. Check the best answer. Each question carries a value of 4 points. The wires repel each other.
Exam II Solutions Part A. Multiple choice questions. Check the best answer. Each question carries a value of 4 points. 1.! Concerning electric and magnetic fields, which of the following is wrong?!! A
More informationPhysics 196 Final Test Point
Physics 196 Final Test  120 Point Name You need to complete six 5point problems and six 10point problems. Cross off one 5point problem and one 10point problem. 1. Two small silver spheres, each with
More informationExam 2 Solutions. Answer: 3.0 W Solution: The total current is in the series circuit is 1 A, so the power dissipated in R 2 is i 2 R 2
Exam 2 Solutions Prof. Pradeep Kumar Prof. Paul Avery Mar. 21, 2012 1. A portable CD player does not have a power rating listed, but it has a label stating that it draws a maximum current of 159.0 ma.
More informationSt. Vincent College PH : General Physics II. Exam 5 4/8/2016
St. Vincent College PH 11201: General Physics II Exam 5 4/8/2016 The exam consists of 4 questions. The questions may not be worth the same number of points, so read the entire exam before beginning work.
More informationPHY101: Major Concepts in Physics I
Welcome back to PHY101: Major Concepts in Physics I Photo: J. M. Schwarz Announcements In class today we will finish Chapter 20 (sections 3, 4, and 7). and then move to Chapter 13 (the first six sections).
More informationPhysics 54 Lecture March 1, Microquiz problems (magnetic fields and forces) Magnetic dipoles and their interaction with magnetic fields
Physics 54 Lecture March 1, 2012 OUTLINE Microquiz problems (magnetic fields and forces) Magnetic dipoles and their interaction with magnetic fields Electromagnetic induction Introduction to electromagnetic
More informationDe La Salle University Manila Physics Fundamentals for Engineering 2 Quiz No. 3 Reviewer
De La Salle University Manila Physics Fundamentals for Engineering 2 Quiz No. 3 Reviewer Multiple Choice: 1. Which of the two arrangements shown has the smaller equivalent resistance between points a and
More informationChapter 30. Induction and Inductance
Chapter 30 Induction and Inductance 30.2: First Experiment: 1. A current appears only if there is relative motion between the loop and the magnet (one must move relative to the other); the current disappears
More information18  ELECTROMAGNETIC INDUCTION AND ALTERNATING CURRENTS ( Answers at the end of all questions ) Page 1
( Answers at the end of all questions ) Page ) The self inductance of the motor of an electric fan is 0 H. In order to impart maximum power at 50 Hz, it should be connected to a capacitance of 8 µ F (
More informationPhysicsAndMathsTutor.com 1
PhysicsndMathsTutor.com 1 Q1. Which line, to, correctly describes the trajectory of charged particles which enter, at right angles, (a) a uniform electric field, and (b) a uniform magnetic field? (a) uniform
More informationExam 2, Phy 2049, Spring Solutions:
Exam 2, Phy 2049, Spring 2017. Solutions: 1. A battery, which has an emf of EMF = 10V and an internal resistance of R 0 = 50Ω, is connected to three resistors, as shown in the figure. The resistors have
More informationPhysics 208, Spring 2016 Exam #3
Physics 208, Spring 206 Exam #3 A Name (Last, First): ID #: Section #: You have 75 minutes to complete the exam. Formulae are provided on an attached sheet. You may NOT use any other formula sheet. You
More informationPhysics 1308 Exam 2 Summer 2015
Physics 1308 Exam 2 Summer 2015 E201 2. The direction of the magnetic field in a certain region of space is determined by firing a test charge into the region with its velocity in various directions in
More informationMagnetism. and its applications
Magnetism and its applications Laws of Magnetism 1) Like magnetic poles repel, and 2) unlike poles attract. Magnetic Direction and Strength Law 3  Magnetic force, either attractive or repelling varies
More informationAssignment 7 Solutions
Assignment 7 Solutions PY 106 1. A singleturn rectangular wire loop measures 6.00 cm wide by 10.0 cm long. The loop carries a current of 5.00 A. The loop is in a uniform magnetic field with B = 5.00 10
More informationElectromagnetism 03/12/2010. Electromagnetism Canada s Triumph Accelerator. Putting it All Together. Hydrogen Minus. Initial Acceleration
Electromagnetism Canada s Triumph Accelerator Putting it All Together Hydrogen Minus Electromagnetism Initial Acceleration Electrostatic Circular Motion Magnetic Steering iltering Magnetic lux Magnetic
More informationQuestion 1. Question 2
Question 1 Figure 2926 shows cross sections of two long straight wires; the lefthand wire carries current i 1 directly out of the page. The net magnetic field due to the two currents is to be zero at
More informationPhys102 Final163 Zero Version Coordinator: Saleem Rao Tuesday, August 22, 2017 Page: 1. = m/s
Coordinator: Saleem Rao Tuesday, August 22, 2017 Page: 1 Q1. A 125 cm long string has a mass of 2.00 g and a tension of 7.00 N. Find the lowest resonant frequency of the string. A) 2.5 Hz B) 53.0 Hz C)
More informationName: Class: Date: Multiple Choice Identify the letter of the choice that best completes the statement or answers the question.
Name: Class: _ Date: _ w9final Multiple Choice Identify the letter of the choice that best completes the statement or answers the question. 1. If C = 36 µf, determine the equivalent capacitance for the
More informationQuestion 6.1: Predict the direction of induced current in the situations described by the following Figs. 6.18(a) to (f ). (a) (b) (c) (d) (e) (f) The direction of the induced current in a closed loop
More informationChapter 30. Induction and Inductance
Chapter 30 Induction and Inductance 30.2: First Experiment: 1. A current appears only if there is relative motion between the loop and the magnet (one must move relative to the other); the current disappears
More informationPhysics 240 Fall 2005: Exam #3 Solutions. Please print your name: Please list your discussion section number: Please list your discussion instructor:
Physics 4 Fall 5: Exam #3 Solutions Please print your name: Please list your discussion section number: Please list your discussion instructor: Form #1 Instructions 1. Fill in your name above. This will
More informationPhysics 202 Midterm Exam 2 Nov 2, 2011
Physics 202 Midterm Exam 2 Nov 2, 2011 Name: Student ID: Section: TA (please circle): Daniel Crow Scott Douglas Yutao Gong Taylor Klaus Aaron Levine Andrew Loveridge Jason Milhone Hojin Yoo Instructions:
More informationθ θ θ θ current I Fig. 6.1 The conductor and the magnetic field are both in the plane of the paper. State
3 1 (a) A straight conductor carrying a current I is at an angle θ to a uniform magnetic field of flux density B, as shown in Fig. 6.1. magnetic field, flux density B θ θ θ θ current I Fig. 6.1 The conductor
More information